Consolidated Statement of Changes in Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance, beginning balance (shares) at Feb. 28, 2021		25,108
Balance, beginning balance at Feb. 28, 2021	$ 623,292	$ 25,108	$ 75,979	$ 547,289	$ (25,084)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	9,449		9,449
Common stock issued under stock-based plans and related income tax expense (shares)		109
Common stock issued under stock-based plans and related tax expense	(2,187)	$ 109	(2,296)
Common stock issued under employee stock purchase plan (shares)		73
Common stock issued under employee stock purchase plan	2,788	$ 73	2,715
Repurchase and retirement of common stock (shares)		(602)
Repurchase and retirement of common stock	(30,815)	$ (602)		(30,213)
Cash dividends paid on common shares	(16,874)			(16,874)
Net income (loss) available to common shareholders	84,022			84,022
Other comprehensive income	(2,310)			(70)	(2,240)
Balance, ending balance (shares) at Feb. 28, 2022		24,688
Balance, ending balance at Feb. 28, 2022	667,365	$ 24,688	85,847	584,154	(27,324)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	8,362		8,362
Common stock issued under stock-based plans and related income tax expense (shares)		154
Common stock issued under stock-based plans and related tax expense	(3,000)	$ 154	(3,154)
Common stock issued under employee stock purchase plan (shares)		70
Common stock issued under employee stock purchase plan	2,372	$ 70	2,302
Dividends on preferred stock	(8,240)
Cash dividends paid on common shares	(16,898)			(16,898)
Net income (loss) available to common shareholders	(52,974)			(52,974)
Other comprehensive income	22,751
Balance, ending balance (shares) at Feb. 28, 2023		24,912
Balance, ending balance at Feb. 28, 2023	619,738	$ 24,912	93,357	506,042	(4,573)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation (shares)		22
Share-based compensation	9,510	$ 22	9,488
Common stock issued under stock-based plans and related income tax expense (shares)		100
Common stock issued under stock-based plans and related tax expense	(1,711)	$ 100	(1,811)
Common stock issued under employee stock purchase plan (shares)		68
Common stock issued under employee stock purchase plan	2,364	$ 68	2,296
Dividends on preferred stock	(14,400)			(14,400)
Cash dividends paid on common shares	(17,018)			(17,018)
Net income (loss) available to common shareholders	101,607			101,607
Other comprehensive income	679
Balance, ending balance (shares) at Feb. 29, 2024		25,102
Balance, ending balance at Feb. 29, 2024	$ 700,769	$ 25,102	$ 103,330	$ 576,231	$ (3,894)